2021-09-07 / 4UC 559-011695 / (106) Dione
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Eric Frappa | O+ | VID | M203 | FR | GPS++ | 00:55:43 | 00:57:06.67 | 00:57:15.97 | 00:58:41 | 0.38 | 1.13 | 9.30 | 160.0 |
2 | show | Gregor Krannich | O+ | CCD | M350 | DE | GPS++ | 00:56:01 | 00:57:38.43 | 00:57:46.86 | 00:59:21 | 1.33 | 1.33 | 8.43 | 145.0 |
3 | show | Karl-Ludwig Bath | O+ | CCD | M180 | DE | NTP+ | 00:55:02 | 00:57:33.49 | 00:57:43.01 | 01:02:28 | 1.06 | 1.06 | 9.52 | 163.7 |
4 | show | Bjoern Kattentidt | O+ | CCD | M279 | DE | GPS+ | 00:55:44 | 00:57:44.89 | 00:57:54.58 | 01:00:02 | 0.53 | 0.71 | 9.69 | 166.7 |
5 | show | Jiri Kubanek | O+ | CCD | M303 | CZ | GPS++ | 00:55:56 | 00:57:50.60 | 00:58:01.07 | 00:59:56 | 1.11 | 1.11 | 10.47 | 180.1 |
5 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#141 : 8853188b-3260-4145-b9ae-37f02c627b05 [db: observed] |
Using prediction 8853188b-3260-4145-b9ae-37f02c627b05 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 191 x 137 km a',b' = 95.3, 68.6 km X0,Y0 = 787.2, 19.5 km Mean diameter = 162 km From 5 chords (VID,CCD) You can enter space separated chord numbers (example: 11 4 8) or a method like VIS to ignore all visual timings, or a time source like RAD and NTP (but not GPS). If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser). Check SiMDA for size and mass data. Check Johnston Archive for satellites. |
Map with groundtrack and observer stations |
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Event Details |
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Occultation UUID [and DB] : 8853188b-3260-4145-b9ae-37f02c627b05 [observed] Occultation Date + Time : 2021-09-07 at 01:00:37 UT +/- 0.01 min [1] Object Designation : (106) Dione Orbit Class : MBA Star Designation : GDR3 3412024931655024512 Star Coordinates (ICRF) : RA = 04 52 19.7139, DE = +21 41 27.718 [2] Star Magnitudes : G = 14.09 mag, RP = 13.25 mag, BP = 14.78 mag Object Magnitude : V = 13.04 mag Estimated Magnitude Drop : 0.4 mag Estimated Max. Duration : 8.5 sec Object Mean Diameter : 147 km (src: astorb) Speed of the shadow : 17.2 km/s Elongation to Moon & Sun : 90° (sunlit = 0%), Sun = 90° Cross-track uncertainty : 2.0 mas = 3 km = 0.02 path-width (1-sig) RUWE and duplicate source : 1.0 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#141 Object is a Gaia mass determination target ! [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0 |
More Data and Informations |
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(If error 404: link not valid which means no data available)
Aladin Sky Atlas |
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Aladin Lite direct link (has Gaia overlay) |